Well I thought it was a homosexual reference. Little Richard once famously said, "Elvis maybe the King of Rock n Roll, but I'm the Queen".
Just read about it. It was more specific than that. It was all about the act of taking one up the jacksie! Even with the lady re-writing it (to feminise it), it was still hugely risque for 1955! And you can guess what the "Bop bopa-a-lu whop bam boo" bit was all about. I had no idea until I read it.